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Mon, 16 May 2022 16:54:24 +0000 (GMT) Received: from eusmgms2.samsung.com (unknown [182.198.249.180]) by eusmtrp2.samsung.com (KnoxPortal) with ESMTP id 20220516165424eusmtrp2e805a2cfc6551f0fbfbd804b04689d96~vpCRdqqyG1030710307eusmtrp2s; Mon, 16 May 2022 16:54:24 +0000 (GMT) X-AuditID: cbfec7f4-45bff7000000269f-33-628281c097a2 Received: from eusmtip1.samsung.com ( [203.254.199.221]) by eusmgms2.samsung.com (EUCPMTA) with SMTP id 9D.00.09404.0C182826; Mon, 16 May 2022 17:54:24 +0100 (BST) Received: from localhost (unknown [106.210.248.7]) by eusmtip1.samsung.com (KnoxPortal) with ESMTPA id 20220516165424eusmtip1eac074d106663fe373f8f11517faf1da~vpCRLXgoG2383023830eusmtip1a; Mon, 16 May 2022 16:54:24 +0000 (GMT) From: Pankaj Raghav To: axboe@kernel.dk, damien.lemoal@opensource.wdc.com, pankydev8@gmail.com, dsterba@suse.com, hch@lst.de Cc: linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org, jiangbo.365@bytedance.com, linux-block@vger.kernel.org, gost.dev@samsung.com, p.raghav@samsung.com, linux-kernel@vger.kernel.org, dm-devel@redhat.com, Bart Van Assche , Hannes Reinecke , Luis Chamberlain Subject: [PATCH v4 04/13] nvmet: Allow ZNS target to support non-power_of_2 zone sizes Date: Mon, 16 May 2022 18:54:07 +0200 Message-Id: <20220516165416.171196-5-p.raghav@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220516165416.171196-1-p.raghav@samsung.com> MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrMKsWRmVeSWpSXmKPExsWy7djPc7oHG5uSDG6rW6y+289mMe3DT2aL 32fPM1vsfTeb1eLCj0Ymi5sHdjJZ7Fk0icli5eqjTBY9Bz6wWOy9pW1x6fEKdos9e0+yWFze NYfNYv6yp+wWNyY8ZbT4vLSF3WLNzacsDoIel694e/w7sYbNY+esu+wel8+Wemxa1cnmsXlJ vcfumw1A4db7rB7v911l8+jbsorRY/2Wqywem09Xe3zeJBfAG8Vlk5Kak1mWWqRvl8CVcf7t BaaC/3wVM2/eY2xgvMnTxcjJISFgIjGzYx57FyMXh5DACkaJRXf6mCGcL4wSXdvPskA4nxkl dix9xgzTcnb2XyaIxHJGibmfj0E5zxklvp6YBORwcLAJaEk0drKDNIgIZElMO/GQEaSGWeA1 k8SZzjusIAlhgQiJHW8bWEDqWQRUJf5syQMJ8wpYSTS+WAy1TF5i5qXv7CAlnALWEqu7uCFK BCVOznzCAmIzA5U0b50NdrWEwGZOibsLZ7ND9LpINE87AmULS7w6vgXKlpH4v3M+E4RdLfH0 xm+o5hZGif6d69lAlkkALes7kwNiMgtoSqzfpQ9R7iix8c4JqAo+iRtvBSFO4JOYtG06M0SY V6KjTQiiWkli588nUEslJC43zWGBsD0kPiy7yTSBUXEWkmdmIXlmFsLeBYzMqxjFU0uLc9NT i43yUsv1ihNzi0vz0vWS83M3MQLT4el/x7/sYFz+6qPeIUYmDsZDjBIczEoivAYVDUlCvCmJ lVWpRfnxRaU5qcWHGKU5WJTEeZMzNyQKCaQnlqRmp6YWpBbBZJk4OKUamHLub8+u6LkkKWbr GhFVcifi2jWhhQdclB8uWjTvTf1KB28WNd5brpOyP8olVTnoljJIuk/n7/lbbRjA7c07M+0p 065lB/7Y/F62K3ZtXn/S15P6opd+yPHc1n927KS4u7aIdWFYQJff5fNRE/fyOPcozr0nEiKd rJn36rdcN2Moh5JMfO/fnScXhHMuTHuyd9rGJEa76vb2lMVPPLaHV90Umr/twHy1KRsfRV1i tNnKk8B50viXSJ7lPF/9Eq67FSk8ClJz2e853gk0LZ30bfXpqucvAlizdvEvquPd+lmxuv1K W4ufWGzDAVU5UcX9GxSeuDxyY9hx6nVfYqNIR+w89gVVh6eYWFi7iVYqsRRnJBpqMRcVJwIA Hj+Oz/YDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrIIsWRmVeSWpSXmKPExsVy+t/xu7oHGpuSDOZ8FrRYfbefzWLah5/M Fr/Pnme22PtuNqvFhR+NTBY3D+xkstizaBKTxcrVR5kseg58YLHYe0vb4tLjFewWe/aeZLG4 vGsOm8X8ZU/ZLW5MeMpo8XlpC7vFmptPWRwEPS5f8fb4d2INm8fOWXfZPS6fLfXYtKqTzWPz knqP3TcbgMKt91k93u+7yubRt2UVo8f6LVdZPDafrvb4vEkugDdKz6Yov7QkVSEjv7jEVina 0MJIz9DSQs/IxFLP0Ng81srIVEnfziYlNSezLLVI3y5BL+P82wtMBf/5KmbevMfYwHiTp4uR k0NCwETi7Oy/TF2MXBxCAksZJQ7fa2eBSEhI3F7YxAhhC0v8udbFBlH0lFHi6JtvrF2MHBxs AloSjZ3sIDUiAgUSc/q3gPUyC3xnkpj6sgCkRFggTOLDB18Qk0VAVeLPljyQCl4BK4nGF4uZ IabLS8y89J0dpIRTwFpidRc3SFgIqOTrk1vsEOWCEidnPoEaLi/RvHU28wRGgVlIUrOQpBYw Mq1iFEktLc5Nzy020itOzC0uzUvXS87P3cQIjNttx35u2cG48tVHvUOMTByMhxglOJiVRHgN KhqShHhTEiurUovy44tKc1KLDzGaAl09kVlKNDkfmDjySuINzQxMDU3MLA1MLc2MlcR5PQs6 EoUE0hNLUrNTUwtSi2D6mDg4pRqYuL75WAmfOFCabszqIbKKT+eu9cGyAzP25tguja7YNclD 3tYrrTCq2u2jki2P7i9N5qw5MxsyXdaLKG+Q6ymKTND02CVw+dL/qV+m87Te6Hmy799kfrFr Lx7u6lvIbiO87Zi+exVDg/7uyCUSr9e1ysxZmT3JyzHq6z6ZF8fm3V62zSCq0rJ3op7p+3mr 3619dvjAtqc8orKnlq+6HjbhnmrwNabgrUH+6xZrtUxvqHl6x9/87qsvIS1GzcKOf9/wb5un +ZBp027PlrRpx5JVX/6Pe2U8e5XaMkZn99y6liaBkyfka19och3wfrlh15IJ1ftYWjifbLOJ 5pefbF658qeYdn2oxePzExYFui/7qMRSnJFoqMVcVJwIAGIunbBkAwAA X-CMS-MailID: 20220516165424eucas1p2ee38cd64260539e5cac8d1fa4d0cba38 X-Msg-Generator: CA X-RootMTR: 20220516165424eucas1p2ee38cd64260539e5cac8d1fa4d0cba38 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20220516165424eucas1p2ee38cd64260539e5cac8d1fa4d0cba38 References: <20220516165416.171196-1-p.raghav@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org A generic bdev_zone_no helper is added to calculate zone number for a given sector in a block device. This helper internally uses blk_queue_zone_no to find the zone number. Use the helper bdev_zone_no() to calculate nr of zones. This let's us make modifications to the math if needed in one place and adds now support for npo2 zone devices. Reviewed by: Adam Manzanares Reviewed-by: Bart Van Assche Reviewed-by: Hannes Reinecke Signed-off-by: Luis Chamberlain Signed-off-by: Pankaj Raghav Reviewed-by: Johannes Thumshirn --- drivers/nvme/target/zns.c | 2 +- include/linux/blkdev.h | 7 +++++++ 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/nvme/target/zns.c b/drivers/nvme/target/zns.c index 82b61acf7..5516dd6cc 100644 --- a/drivers/nvme/target/zns.c +++ b/drivers/nvme/target/zns.c @@ -242,7 +242,7 @@ static unsigned long nvmet_req_nr_zones_from_slba(struct nvmet_req *req) unsigned int sect = nvmet_lba_to_sect(req->ns, req->cmd->zmr.slba); return blkdev_nr_zones(req->ns->bdev->bd_disk) - - (sect >> ilog2(bdev_zone_sectors(req->ns->bdev))); + bdev_zone_no(req->ns->bdev, sect); } static unsigned long get_nr_zones_from_buf(struct nvmet_req *req, u32 bufsize) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 32d7bd7b1..967790f51 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1370,6 +1370,13 @@ static inline sector_t bdev_zone_sectors(struct block_device *bdev) return 0; } +static inline unsigned int bdev_zone_no(struct block_device *bdev, sector_t sec) +{ + struct request_queue *q = bdev_get_queue(bdev); + + return blk_queue_zone_no(q, sec); +} + static inline unsigned int bdev_max_open_zones(struct block_device *bdev) { struct request_queue *q = bdev_get_queue(bdev);